Block copolymer and process for preparing it

Details Block copolymer and process for preparing it Block copolymer and process for preparing it

C - Chemistry, Metallurgy

08

F

400/2043

C08F 297/04 (2006.01) C08F 4/48 (2006.01) C08F 236/10 (2006.01) C08L 53/02 (2006.01)

Patent

CA 1295760

"BLOCK COPOLYMER AND PROCESS FOR PREPARING IT" Abstract A linear copolymer constituted by four alternating blocks: B1-A1-B2-A2 wherein: B1 and B2 are polydienic blocks, and preferably polybutadiene blocks, and A1 and A2 are polyvinylaromatic, and preferably polystyrene blocks; which polymer has a weight average molecular weight of from 30,000 to 250,000, and a global content of monomer dienic units of from 40 to 80% by weight, wherein the weight average molecular we;ght of B1 block is comprised within the range of from 0.1 to 0.5 times the weight average molecular weight of B2 block, and the weight average molecular weight of A1 block is comprised within the range of from 0.25 to 2.0 times the weight average molecular weight of A2 block, and which contains between B1 and A1 blocks a copolymeric moiety formed by randomly linked monomer dienic and vinylaromatic units; is endowed with a desired balance of mechanical characteristics, rheologic characteristics and characteristics of thermooxidative resistance. The process to prepare such a block copolymer is disclosed.

551131

Affiliated with

Also associated with

Rating

Block copolymer and process for preparing it does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Block copolymer and process for preparing it, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Block copolymer and process for preparing it will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1282392